also, a tell tale sign of root rot is when your plant looks thirsty, that slime dont kill your roots, it competes with roots for water, thus smothering root systems, first things first, need to control water temps, guess what? water of 72-75F means no hydro for you, you might want to toss an a/c in your room or get a chiller, once you sort out temps, add some hygrozyme and watch that nasty shit get dissolved. changing water daily for a week helps expedite the recovery, since in hydro you dont want want the nasty slime that falls off roots into the water to get recirculated back, hygrozyme is an enzyme that targets bad bacteria and pathogeons and any and all dead root matter, when using the stuff your water gets even worse looking, this is good cus the hzyme is working, disolving pathogens and any roots that are infected, with a fresh res daily in 5-7 days new explosive roots appear. i got root rot 2 times in the last 8 months and hzyme bailed me out, people will say that it dont work bcus it gets even slimier at first, best get your temps straightend out and use it as protective maintanence